Programming Tutorial

Next, highlight the top track again, and click Add again. This will create a second block.
Change the brightness of this second block to 0%. At this point, we have a program that
is on for one second and then off for one second. We’d like a faster flash rate than that, so
we’ll have to change the time values of the blocks to .25 seconds each. Select the first
block and type .25 into the box labeled Time as shown below.